Marc H. Ellwein, PA-C
Physician Assistant · Sioux Falls, SD
Marc H. Ellwein, PA-C is a physician assistant with a practice address in Sioux Falls, South Dakota, and NPI 1710914478, issued on Jun 27, 2006. Check the license (South Dakota 0178, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marc H. Ellwein
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 0178 SD
Self-reported in NPPES; status is on the state search - Practice location
- 2100 S Marion RD, Sioux Falls, SD 57106
- Phone
- (605) 322-5180
- Enumerated
- Jun 27, 2006
- Record last updated
- Apr 18, 2022
- Fax
- (605) 322-5179
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 674 in South Dakota → Look up another NPI →
Also registered at 2100 S Marion RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Baumbach, M.D.Family Medicine Physician1508090523
- Daniel Boadwine, MDPediatrics Physician1689194235
- Lesley CookGerontology Nurse Practitioner1174554448
Verify Marc H. Ellwein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license 0178Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average physician assistant in 2024
31 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Marc H. Ellwein among 674 physician assistant records in South Dakota
Marc H. Ellwein, PA-C is one of 674 physician assistant records with a practice address in South Dakota. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 67% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2022 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
245 physician assistant records list a practice address in Sioux Falls
They are 245 of the 6,563 NPPES records with a practice address in Sioux Falls, and 674 physician assistant records in South Dakota.
All 674 in South Dakota → Every provider in Sioux Falls → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Mariah Baier, PA-CSioux Falls, SD 571061376252635
- Barbara Belkham, PASioux Falls, SD 571061982604690
- Caitlin Hanson, PA-CSioux Falls, SD 571061952017295
- Keeley Masterson, PA-CSioux Falls, SD 571061437934338
- Rodney Ridenour, PACSioux Falls, SD 571061689620031
- Jeanne Rud, PA-CSioux Falls, SD 571061790762425
- Melissa Alexander, PASioux Falls, SD 571071366625352
- Emily Allen, PASioux Falls, SD 571051508687427
Common questions
What is Marc H. Ellwein, PA-C's NPI number?
Marc H. Ellwein, PA-C's National Provider Identifier (NPI) is 1710914478, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc H. Ellwein, PA-C located?
The NPPES record lists a practice address at 2100 S Marion RD, Sioux Falls, SD, 57106. Phone: (605) 322-5180. Providers update this record themselves, so call before visiting.
How can I verify Marc H. Ellwein, PA-C's license?
NPPES lists South Dakota license number 0178, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Marc H. Ellwein, PA-C prescribe under Medicare Part D?
In 2024, Marc H. Ellwein, PA-C had 31 Medicare Part D claims; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.